knocker

noun

knock·​er ˈnä-kər 

1

: one that knocks: such as

a

: a metal ring, bar, or hammer hinged to a door for use in knocking

b

: a persistently pessimistic critic

2

sometimes vulgar : breast

—usually used in plural

Synonyms of knocker

• critic
• criticizer

Examples of knocker in a Sentence

the secretary of defense needs supporters, not knockers, to get through this crisis

Recent Examples on the Web

The elegant bean grinder features 31 settings that are dial controlled—not to mention a grind knocker on the side mitigates grind retention inside. —Jack Byram, Architectural Digest, 7 Nov. 2025

Known as knockers in England, kobolds also live in caves and mines and make knocking noises directing human miners where to dig. —Literary Hub, 27 Oct. 2025

This lush harvest look is designed to avoid blocking handles and knockers while adding deceptively faux foliage to your door. —Mariana Best, Better Homes & Gardens, 1 Sep. 2025

Word History

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing knocker

• apple-knocker
• door knocker

Rhymes for knocker

• blocker
• chalker
• cocker
• docker
• hawker
• hocker
• locker
• mocker
• ocher
• rocker
• shocker
• soccer

Kids Definition

knocker

noun

knock·​er ˈnäk-ər 

: a device made like a hinge and fastened to a door for use in knocking